Engineering

Energy

Design by Analysis (DBA)

DBA requirements are organized based on protection against failure modes (plastic collapse, local failure, buckling and cyclic loading).
DBA is more accurate and sophisticate than ‘design by rule’.

Design by Analysis

  • Plastic collapse analysis
  • Local failure analysis
  • Buckling analysis
  • Fatigue analysis
  • Ratcheting analysis
  • Lifting/transportation analysis
  • Blast resistant design
  • Passive fire protection (PFP) design
  • Impact analysis
  • Vibration monitoring & remediation
  • Post weld heat treatment (PWHT) analysis
  • Heat transfer efficiency analysis
  • Hydrodynamic analysis

Equipment/model types

  • Pressure vessels
  • Special connection design including gusset plate, web penetration whole and reinforcement
  • Composite section design
  • Pipe whip restraint
  • LNG pipeline shroud
  • Stack
  • Pipelines
  • Weld
  • Lifting and transportation jig
  • Heat exchanger

Integrity Assessment & Fitness For Service (FFS)

FFS is a multi-disciplinary engineering analysis of equipment to determine whether it is fit for continued service until the next shutdown.
Equipment may contain flaws, not meet current design standards or be subjected to more severe operation condition than original design.
FFS assessments helps to make a decision to run as is, alter, repair, monitor or replace; guidance on an inspection interval is also provided.

FFS services include:

  • Various material types (i.e. , steel and composite material)
  • Analysis model is built up based on measured data (i.e., corroded thickness and 3D scanned data)
  • Corrosion and erosion/laminations/hydrogen blisters, HIC & SOHIC damage/bulges & out-of-roundness distortion/dents, gouges and dent-gouge combinations
  • Crack-like flaws, including creep, stress corrosion, fatigue, and corrosion-fatigue crack growth/remaining life
  • Creep and creep-fatigue damage
  • Fire damage/thermal and mechanical fatigue
  • Bolted flange leak and ring joint flange cracking
  • Provide retrofit plans
  • High-temperature assessments and creep studies
  • Fire damage assessments

 

 

 

Equipment/model types:

  • FCCU’s/reactors
  • Regenerators
  • Pressure vessels
  • Furnace
  • Heat exchangers
  • Dryers
  • Process piping & pipeline
  • Storage tanks
  • Control building on offshore platform

Renewable Energy - Offshore Floating Wind Turbine​

A floating wind turbine consists of wind turbine (RNA and tower), floating platform, station keeping system(mooring system), power cable line​

The floating wind turbine is a dynamic system that is subjected to steady forces of wind, current and mean wave drift, as well as wind, current and wave-induced dynamic forces. Also, the motion of floating wind turbine is governed by the motion of wind turbine. ​

The floating wind turbine system is complex system, and all system components should be analyzed and designed interactively

Offshore Wind Turbine Services include

  • FEED design​
  • Fully coupled global performance analysis ​

Fully coupled model, including components; ​ turbine RNA, tower, hull, station-keeping ​ system and power cable

Includes coupling effects; aero-elastic, aero-control, tower-hull, hull-mooring​ Time domain and Frequency domain analysis ​

Time domain and frequency domain analysis

  • Station-keeping system (mooring and anchor design) and power cable design​
  • Hull structural design​

Finite element analysis (FEA) to assess structural integrity of the platform

Structural design optimization

  • Welding & Connection design​

Nuclear Facilities Design and Assessment

Assess deterministic and probabilistic structural integrity of nuclear power plant facilities when they are subjected to various load conditions

Nuclear Facilities Design and Assessment services include:

  • Perform various analyses; Elastic-plastic analysis / Nonlinear heat-transfer analysis and coupled thermal-stress analysis / Fluid-structure interaction / Missile-Target Interaction Analysis
  • Assess concrete wall integrity considering discontinuous behavior of cracking, crushing, and shear retention
  • Generate fragility curve for the failure event and Complimentary Cumulative Failure Probability (CCFP) for key components and system to depict their capacities probabilistically
  • Perform analyses with load cases include but not limited :
  • Impulsive loading derived from the Ex-Vessel Steam Explosion
  • Earthquake Load
  • Tornado generated missiles (steel rods, steel pipes, and automobiles)
  • Internal accident generated missile (pipe whipping)
  • Residual velocity of aircraft after perforation

Equipment/model types:

  • Reactor Containment Building (RCB)
  • RPV cavity wall and cavity sleeve structure/ Reactor Pressure Vessel (RPV) Reactor Coolant System (RCS)
  • RPV support system/ Steam Generator (SG), main steam lines
  • IRWST (In-containment Refueling Water Storage Tank)
  • Spent Fuel Pool (SFP)
  • Auxiliary Building (AB)
  • Turbine Building

Root Cause Analysis (RCA)

RCA discover barriers and causes of problems based on engineering knowledge to identify appropriate solutions.

RCA services include

  • Plastic collapse analysis
  • Seal crack assessment
  • Crack assessment
  • Gasket leak assessment

Equipment/model types

  • FCCU regen standpipe
  • Heat exchanger
  • Support ring of reactor

Automation for simulation

Automation provides time saving for repetitive tasks and parametric studies.

Automation makes the overall workflow more efficient

Simulation Automation service include

  • Scripting for generating inputs and post-processing
  • Plug-in programs for Abaqus
  • Graphical user interface (GUI)

Examples

  • Material properties generator
  • Flange analysis automation